Are vegetarians who don't drink enough milk more prone to brain strokes?

I came across this article today - it's a bit scary. It's about how vegetarians are more prone to brain strokes because we get less vitamin B-12.

A neurologist did a study of 460 cases of brain strokes and 80% were vegetarians who did not drink milk.

I don't really drink milk. I only have it in tea and I only have about five cups of tea a day.

Here's the Food Standards Agency info page on milk.

Right I'm off to the fridge for a large glass of the white stuff.

Ps. enjoy the Accrington Stanley Ad from the 1980s.